BS EN 10029:2010 Hot-rolled steel plates 3 mm thick or above – 1 Tolerances on dimensions and shape
BS EN 10029:2010 pdf free.Hot-rolled steel plates 3 mm thick or above – 1 Tolerances on dimensions and shape.
This European Standard specifies tolerances on dimensions and shape for hot-rolled non-alloy and alloy steel plates with the following characteristics:
a) Nominal thickness: 3 mm < t<400 mm:
b) Nominal width: w 600 mm.
Tolerances for products of width w 600 mm cut or slit from plate should be agreed between manufacturer and purchaser at the time of enquiry and order.
This European Standard applies, but is not limited, to steel grades defined in EN 10025-2 to EN 10025-6:2004+A1:2009, EN 10028-2 to EN 10028-6, EN 10083-2 and EN 10083-3, EN 10084, EN 10085, EN 10149-2 and EN 10149-3. EN 10207 and EN 10225 (see also Annex A). It does not apply to stainless steels.
This European Standard does not include round plates, custom-made plates, chequer or bulb plate for flooring and wide flats.
2 Normative references
The following referenced documents are indispensable for the application of this documeni For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 10079. Definition of steel products
EN 10163-1, Delivery requirements for surface condition of hot-rolled steel plates. wide flats and sections — Part 1: General requirements
EN 10163-2, Delivery requirements for surface conditions of hot-rolled steel plates, wide flats and sections — Part 2: Plate and wide flats
3 Terms and definitions
For the purposes of this document, the following term and definition apply.
plate see EN 10079
4 Information to be supplied by the purchaser
4.1 Mandatory information
The following information shall be supplied by the purchaser at the time of enquiry and order:
a) quantity to be delivered;
b) designation of the product form (plate);
c) number of this dimensional standard (EN 10029);
d) nominal thickness in millimetres:
e) nominal width in millimetres;
f) nominal length in millimetres.
Plates ordered according to this European standard shall be delivered as follows:
tolerance class Afor thickness unless otherwise stated (see 6.1, Table 1);
— trimmed edges:
— normal edge camber and out-of-squareness (see 7.1);
normal tolerances for flatness, class N (see 7,2, Table 4).
If no information concerning points a) to f) of 4.1 is given by the purchaser. the supplier shall refer back to the purchaser.
4.2 Options
A number of options are specified in this European Standard and listed below. If the purchaser does not indicate his wish to implement any of these options, the supplier shall supply in accordance with the basic specification of this European Standard (see 4.1):
a) if thickness tolerance class B, C or D is required, include B, C or 0 in the order designation (see Clause 5 and 6.1);
b) if plate with untrimmed edges is required, include NK in the order designation (see 6.2.2);
c) if plate with limited edge camber and out-of-squareness is required, include letter G in the order designation and define the required maximum values for edge camber and out-of-squareness (see 7.1);
d) if plate with special flatness tolerances is required. include the letter S in the order designation (see 7.2.1 and Table 5);
e) if plates with a nominal length 1> 20 000 mm are required, the agreed tolerances on length are to be reported (see 6.3, Table 3);
f) for plates with untrimmed edges, the chosen and agreed measuring points for the measurement of the thickness are to be reported (see 8.2).
5 Form of supply
Plate according to this European standard can be supplied:
一 with thickness tolerances of classA, B, C orD (see 6.1);
一 with trimmed or untrimmed edges (NK) (see 6.2.2);
一 with normal or limited edge camber and out-of-squareness (G) (see 7.1);
一 with normal (N) or special (S) flatness tolerances (see 7.2).
6 Tolerances on dimensions
6.1 Thickness
6.1.1
Tolerances on thickness are given in Table 1. Plates may be supplied with either:
class A: for minus thickness tolerances depending on the nominal thickness;
class B: for a fixed minus tolerance of 0,3 mm;
class C: for a fixed minus tolerance of 0,0 mm;
class D: for symmetrical tolerances.
At the time of enquiry and order the purchaser shall indicate if class A, B, C or D tolerances is required (see 4.1 and 4.2). If no class is stated, class A applies.
6.1.2 For permissible limits concerning surface imperfections and requirements for repair EN 10163-1 and EN 10163-2 apply.
6.2 Width
6.2.1 Tolerances on width for plates with trimmed edges are given in Table 2 depending on the thickness of the plate.
7 Tolerances on shape
7.1 Edge camber and out-of squareness
For plate specified with normal edge camber and out-of squareness in the order, the edge camber and out of squareness shall be so that it is possible to inscribe a rectangle with the dimensions of the ordered plate within the delivered size.
For plate specified with limited edge camber and out-of squareness (G) in the order, the maximum values for
edge camber and out of squareness shall be agreed at the time of enquiry and order (see 4.2, option C)).
7.2 Flatness
7.2.1 General
Tolerances on flatness are given in Table 4 for normal tolerances (class N) and in Table 5 for special tolerances (class S). The plate shall be supplied with normal tolerances according to Table 4. only if otherwise specified in the order the plate shall be supplied with special tolerances (see 4.2, option d)).
Deviation from flatness shall be determined by measuring the distance between the plate and a straight edge (for details see 8.7). Straight edges of a length of 1 000 mm are used if the wave pitches (distance between the points of contact of the straight edge and the plate) are smaller than or equal to 1 000 mm. For longer wave pitches straight edges of a length of 2 000 mm are used. Deviations from flatness < 2 mm shall not be considered as a wave and not be taken into account.
NOTE It is pointed out that bad handling and storage can adversely affect the flatness of the product. The steel types according to Tables 4 and 5 are defined as follows:
— Steel type L: Products with a specified minimum yield strength R 460 MPa, neither quenched nor quenched and tempered.
— Steel type H: Products with a specified yield strength Re > 460 MPa and all grades of quenched and quenched and tempered products.
7.2.2 Normal tolerances on flatness (class N)
If the wave pitch (distance between the points of contact of the straight edge and the plate) is < 1 000 mm the permissible deviation from flatness shall comply with the following requirements:
For distances between the points of contact of two waves between 300 mm and 1 000 mm the maximum flatness tolerance is 1 % for steel type L and 1,5 % of the wave pitch for steel type H, but not exceeding the values in Table 4.BS EN 10029 pdf download.BS EN 10029:2010 Hot-rolled steel plates 3 mm thick or above – 1 Tolerances on dimensions and shape